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Volvo B5244S4 User Manual

Volvo B5244S4
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21 002663j
ENGINES
B5244S4 AND B5254T3
I
NTRODUCTION
The engines are designed to be compact to fit into the smaller engine compartment (25 mm shorter
than the earlier 5 cylinder).
The engines have pendulum suspension-type motor mounts.
The air cleaner housing and control module box are integrated.
The intake manifold is also used as a cover for the engine (the turbocharged engine has a separate
cover).
The engines have two drive belts (one for the alternator and one for the air conditioning compressor).
The naturally aspirated B5244S4 engine has a Denso engine management system.
The turbocharged B5254T3 engine has a
Bosch
engine management system.
Engines
B5244S4 and B5254T3
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Volvo B5244S4 Specifications

General IconGeneral
BrandVolvo
ModelB5244S4
CategoryEngine
LanguageEnglish

Summary

Engines Overview

Introduction to B5244S4 and B5254T3

Introduces engine compactness, mounts, integrated components, drive belts, and management systems.

B5244S4 Engine Details

General Specifications

Details the B5244S4 engine, its basis, introduction, emissions, and transmission.

B5244S4 Component Overview

Crankshaft and Main Bearings

Details crankshaft stroke, weight, bearing journals, and bearing material.

Connecting Rods and Bearings

Details connecting rod length, weight, and bearing material.

Pistons

Describes graphite-coated pistons, their dimensions, weight, and coating.

B5244S4 Cylinder Head and Ancillaries

Cylinder Head and CVVT

Details cylinder head features, CVVT, and angle variation.

Camshaft Housing

Mentions integrated sensors, CVVT solenoid location, and oil filler pipe.

Oil Filter, Oil Trap, and Separation

Describes integrated oil filter/trap, its location, overflow valve, and oil separation.

Spark Plugs

Discusses spark plug features like Quick Heat, thread length, and electrodes.

Engine Cooling and Exhaust Systems

Thermostat Housing and Auxiliary Equipment

Covers thermostat housing location and auxiliary equipment design changes.

Catalytic Converter

Describes the Under Floor Catalyst (UFC) and its ceramic monoliths.

Exhaust Pipe Design

Mentions reduced wind resistance and pipe/tail pipe specifications.

Intake System Components

Intake Manifold Sections

Details intake manifold sections, volume, injector location, material, and crankcase gas ducts.

Air Cleaner System

Discusses air cleaner design for pressure drop and compactness, and its housing.

Engine Cooling Fan

Mentions cooling fan speeds and blades.

B5254T3 Engine Details

General Specifications

Details the B5254T3 engine, its basis, management system, emissions, and transmission.

B5254T3 Component Overview

Crankshaft and Main Bearings

Details crankshaft stroke, weight, bearing journals, and bearing material.

Connecting Rods and Bearings

Details connecting rod material and bearing type.

Pistons

Describes graphite-coated pistons, their dimensions, weight, and coating.

B5254T3 Cylinder Head and Ancillaries

Cylinder Head and CVVT

Details cylinder head features, CVVT, and angle variation.

Oil Filter, Oil Trap, and Separation

Describes integrated oil filter/trap, its location, overflow valve, and oil separation.

Spark Plugs

Discusses spark plug features like Quick Heat, thread length, and electrodes.

CVVT Unit Operation

CVVT Unit Components

Identifies timing belt pulley, lock pin, rotor, and rotor wings.

Camshaft Position Adjustment

Describes how the CVVT unit adjusts camshaft position relative to the crankshaft.

Locking Mechanism Function

Explains how the timing belt pulley and rotor are secured in the 0 position.

Camshaft Reset Valve Function

Valve Control Mechanism

Explains that the ECM controls the valve using a PWM signal for oil flow.

Camshaft Advance Control

Oil Flow and Lock Pin Engagement

Describes oil flow, lock pin engagement, and CVVT unit release.

Rotor Rotation and Return Flow

Explains rotor rotation due to oil pressure and return oil flow.

Camshaft Retard Control

Oil Flow and Rotor Rotation

Describes oil flow, clockwise rotor rotation, and lock pin engagement.

Control Process and Frequency

Mentions rapid process, ECM control for advancing/retarding, and high frequency.

Bosch ME 9.0 Engine Management System

System Updates and Relocation

Discusses ME 7.01 to ME 9.0 update and control module relocation to intake manifold.

Processor and Memory Improvements

Compares processor load, flash memory, and margin for ME 9.0 vs ME 7.01.

Enhanced Specifications

Highlights ME 9.0's higher temperature and vibration specifications.

Turbocharger System Details

Exhaust Manifold and Turbocharger Housing

States exhaust manifold integrated with turbine housing and MLS gasket.

Charge Pressure and Control Valve

Mentions maximum charge pressure and Turbo Control Valve (TCV) location.

Turbocharger Design and Supplier

Details turbocharger matching and design by Volvo and 3k-Warner.

Under Floor Catalyst (UFC)

Describes the Under Floor Catalyst (UFC) with double oval ceramic monoliths.

Turbocharger Intake and Ancillary Systems

Intercooler and Charge Air Pipe

Covers intercooler location and charge air pipe mounting.

Intake Manifold and ETB

Describes intake manifold sections and ETB with shortened hose connector.

Auxiliary Equipment and Thermostat Housing

Covers auxiliary equipment design and thermostat housing location.

Turbocharged Intake System Components

Intake Manifold Lower Section

Details intake manifold sections, volume, injector location, material, and crankcase gas ducts.

Air Cleaner Assembly

Discusses air cleaner design, housing, and integration.

Fuel Tank System

Plastic Tank with On-Demand Fuel Pump

Details plastic fuel tank for U.S. (LEV II) and its volume.

EVAP Emission Control System

Describes the EVAP system, recirculation pipe, and EVAP canister.

Pump Electronic Module (PEM)

Explains PEM function and mounting location.

On-Demand Fuel Pump Operation

Fuel Pump Flow Rates

Details pump flow rates for NA and turbo engines at full load and idle.

Fuel Pump Power Consumption

States power consumption variation based on engine load.

Fuel System Valves and Components

Pressure Ventilation Valve (PVV)

Explains PVV operation and pressure limitation for NA and turbo engines.

Pressure Relief Valve (PRV)

States the PRV opens within a specific pressure range for B5244S4.

First Filling Valve (FFV)

Explains FFV function for filling and tilt conditions.

Check Valve and Ejector

Explains check valve function and ejector operation.

Fuel Filter

States fuel filter location within the reservoir.

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